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San Francisco Bay

(Encyclopedia)San Francisco Bay, 50 mi (80 km) long and from 3 to 13 mi (4.8–21 km) wide, W Calif.; entered through the Golden Gate, a strait between two peninsulas. The bay is as deep as 100 ft (30 m) in spots, ...

Richmond–San Rafael Bridge

(Encyclopedia)Richmond–San Rafael Bridge, W Calif., c.4 mi (6 km) long, part of the network of bridges serving the San Francisco Bay area; completed in 1957. It provides an essential link between the east side of...

San Francisco–Oakland Bay Bridge

(Encyclopedia)San Francisco–Oakland Bay Bridge, double-decked structure, W Calif.; built 1933–36 and (eastern section replacement) 2002–13. It has a total length of 8.25 mi (13.2 km). From San Francisco it cr...

San Quentin

(Encyclopedia)San Quentin sn kwn´tn [key], peninsula extending into San Francisco Bay, W Calif., N of San Francisco. The state prison there was begun in 1852. San Quentin is the western terminus of the Richm...

San Mateo

(Encyclopedia)San Mateo sn mt´ [key], city (1990 pop. 85,486), San Mateo co., W Calif., on San Francisco Bay; inc. 1894. It is a commercial and retail center with some high-technology manufacturing. San Ma...

bridge

(Encyclopedia)bridge, structure built over water or any obstacle or depression to allow the passage of pedestrians or vehicles. See also viaduct. Early Bridges In ancient times and among primitive peoples a log was...

San Pablo Bay

(Encyclopedia)San Pablo Bay: see San Francisco Bay.

San Francisco

(Encyclopedia)San Francisco sn frnss´k [key], city (1990 pop. 723,959), coextensive with San Francisco co., W Calif., on the tip of a peninsula between the Pacific Ocean and San Francisco Bay, which are co...

Rialto Bridge

(Encyclopedia)Rialto Bridge räl´t [key], Ital. Ponte di Rialto, bridge of Venice, NE Italy, over the Grand Canal, connecting Rialto and San Marco islands. Built between 1588 and 1591, it consists of a single ...

Chesapeake Bay Bridge-Tunnel

(Encyclopedia)Chesapeake Bay Bridge-Tunnel, officially the Lucius J. Kellam, Jr. Bridge-Tunnel, 17.6 mi (28.2 km) long, across the mouth of Chesapeake Bay, E Va., connecting Cape Charles with Norfolk, Va. Opened in...